Jim Hoehns, Pharm.D.
Lancet 2013;382:507-15
Albers G et al. Chest. 2001; 119 (suppl): 300S. Ischemic stroke 85% Hemorrhagic stroke 15% Other 5% Cryptogenic 30% Cardiogenic embolism 20% Small vessel disease “lacunes” 25% Atherosclerotic cerebrovascular disease 20%
Randomized, open-label, multi-center trial 3,020 patients; mean follow-up: 3.4 years North America, Latin America, Spain; 81 centers Funding: NINDS Treatment High SBP: mm Hg Low SBP: <130 mm Hg Randomization ▪ Stratified by baseline hypertensive status Inclusion criteria: Age ≥30 yrs Symptomatic lacunar stroke within past 180 days ▪ MRI criteria: lesion ≤ 2.0 cm; corresponded to clinical syndrome ▪ TIAs allowed only if MRI evidence present No surgically correctable carotid artery disease No major risk factors for cardioembolic stroke N Engl J Med 2012;367: Starting at least 2 weeks after stroke
Exclusion criteria: History of intracerebral bleeding Disabling stroke (modified Rankin score ≥4) Primary outcome: Stroke recurrence (any ischemic stroke or ICH, including subdural hematomas) Power analysis: Estimated 3 yr rate of recurrent stroke: 21% ▪ 90% power to detect 25% RRR with combination Blood pressure Managed by site PI
Median time from qualifying stroke until randomization: 62 days
At 1 year: 75% of high BP group at goal, 65% of low BP group at goal
Rate of recurrent stroke much lower than anticipated Frequent use of statins, high adherence to antiplatelets, good BP control in both groups Unblinded; however endpoints were adjudicated in blind fashion Approximately 5% in either group did not attain BP goal
Authors Findings consistent with those of previous studies…support a treatment target of <130 for most patients with recent lacunar stroke Intervention well tolerated BP meds permanently discontinued in 17% in both groups Patient disposition 3% lost to follow-up 15% prematurely discontinued study